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Development kicks things off by “tossing” a software release “over the wall” to Operations. Operations picks up the release artifacts and begins preparing for their deployment. Operations manually hacks the deployment scripts provided by the developers or creates their own scripts. They also hand edit configuration files to reflect the production environment, which is significantly different than the Development or QA environments. At best they are duplicating work that was already done in previous environments, at worst they are about to introduce or uncover new bugs. Operations then embarks on what they understand to be the currently correct deployment process, which at this point is essentially being performed for the first time due to the script, configuration, process, and environment differences between Development and Operations. Of course, somewhere along the way a problem occurs and the developers are called in to help troubleshoot. Operations claims that Development gave them faulty artifacts. Developers respond by pointing out that it worked just fine in their environments, so it must be the case that Operations did something wrong. Developers are having a difficult time even diagnosing the problem because the configuration, file locations, and procedure used to get into this state is different then what they expect (if security policies even allow them to access the production servers!). Time is running out on the change window and, of course, there isn’t a reliable way to roll the environment back to a previously known good state. So what should have been an eventless deployment ended up being an all-hands-on-deck fire drill where a lot of trial and error finally hacked the production environment into a usable state.

People = Culture Fundamental attributes of successful cultures: Shared mission and incentives: infrastructure as code, apps as services, DevOps/all as teams You need to consider your hardware as a commodity, (don't give your servers names) , servers are like farm animals, it is just harder if you let theids name them Build deep instrumentation into services, push complexity up the stack Rally around agile, shared metrics, CI, service owners on call, etc. Changing the culture: any change takes time, changing culture is no exception and you can't do it alone, exploit compelling events to change culture: downtimes, cloud adoption, devops buzz